Window operating mechanism



June w 1936. A. v. BROGRVEN 2,045,694

WINDOW OPERATING MECHANI SM Filed July 25, 1954 IN VEN TOR.

//xe/ 1/ Brggren 3% I ATTORNEYS;

Patented June 30, 1936 UNITE STATES PATENT orrlacs WINDOW OPERATING MECHANISM Axel V. Brogren, Detroit, Mich.

-Application July 25, 1934, Serial No. 736,874

I 2 Claims. (01. 268-126) My invention relates to improvements in operating mechanism particularly designed for the raising or lowering of windows as, for example, automobile windows.

An object is to provide an operating device of this character which is simple, inexpensive and consists of a minimum number of movable parts. It is so designed as to be easily assembled, and is of a rigid and sturdy construction.

A further object is to provide mechanism of this character which will function to raise and lower the window and which will'hold the window in any position to which it may be moved and which is irreversible in its operation.

A meritorious characteristic is the provision of simple sturdy actuating mechanism comprising a manually rotatable spiral worm coupled with a driven member to advance the same substantially radially across the spiral worm upon rotation of the worm. The arrangement is such that the driven member advances lengthwise across the spiral upon rotation of the spiral, and the spiral successively engages the driven member at uniformly spaced apart intervals throughout the length of the driven member to advance the same. The driving engagement formed between the driven member and the spiral is such that the mechanism is irreversible.

In the embodiment of my invention illustrated in the drawing, wherein it is developed in a window regulator structure, there is a lever pivotally mounted at one end and coupled with a window closure at the opposite end and this lever is provided with a radius arm which is coupled with a manually rotatable spiral so that the lever is raised and lowered upon rotation of the spiral.

The engagement of the spiral with the arm is such that the arm is advanced and withdrawn substantially radially across the face of the spiral upon rotation of the spiral, and the spiral upon its rotation successively engages said arm at spaced intervals throughout the length of the arm to actuate the arm.

Other objects, advantages, and meritorious features of my invention will more fully appear from the following description, appended claims, and accompanying drawing, wherein:

Figure 1 is an elevation partly broken away of my invention associated with a movable window,

Fig. 2 is a vertical sectional view taken on line 2-2 of Fig. 1,

Fig. 3 is an elevation of a fragment of the structure shown in Fig. 1 taken from the opposite side,

Fig. 4 is an end elevation of a spiral disc, and

Fig. 5 is a cross section on line 5-5 of Fig. 1

through the radius arm 52 showing engagement of spiral disc therewith.

In the drawing my invention is shown as embodied in a window lifting device suitable for use with automobile windows. A movable window closure is indicated at In. This is provided with a lower rail l2 in the form of a channel which embraces the lower edge of the pane. This rail is provided with a depending portion slotted at Hi to receive a pin I6. The pin is carried at the end of the arm l8 which arm is pivotally mounted at its opposite end upon a pivot ill carried by a support 22.

The support is in the form of a plate which serves as the frame for the lifting mechanism. This plate is adapted to be secured by rivets 24 or the like to the body frame structure 26. In Fig. 2 this frame member 26 is shown as forming a part of an automobile body such as a door. The door is illustrated as having an inner panel 28 and an outer panel 30.

The window lifting device is positioned between these two panels as is common practice. The inner panel is perforated for a shaft 32 to extend therethrough. This shaft carries a crank or handle 34. There is provided a conventional cover plate 36. To this extent the construction is well known. My invention relates to improvements in the driving mechanism.

To raise and lower the window through the arm 18 by means of the handle 34 I provide improved actuating mechanism as follows:

The shaft 32 is provided with a disc 38 whicl. is suitably secured thereto to be rotated thereby. This disc has a circumference fashioned after the form of a spiral and this circumferential portion is turned over as at 40 forming a spira flange.

The lever I8 is provided with an arcuate radius arm 42 secured thereto and extending as shown toward the spiral and between the spiral and the supporting plate 22. This arm is provided with a turned over flange 44 which is provided with a plurality of arcuate slots 46. These slots are arranged at uniformly spaced apart intervals throughout the length of the flange. The spacing of the slots corresponds with the pitch of the spiral worm 40 and the slots are arranged to receive this worm as shown in Fig. 1. The arm is so constructed and arranged that as it is moved across the face of the spiral it clears the shaft 32 as shown in Fig. 1.

The mechanism is provided with a counterbalance spring 48 which is adapted to be tensioned upon lowering of the window to assist in the raising thereof. This feature is a conventional one. This spring is shown in Fig. 3.

In the operation of the device, as the spiral 40 makes a complete revolution through one of the slotted ways 46 in the radius arm 42 it advances the radius arm transversely across the face of the spiral the pitch distance thereof. Just prior to the time that the end of the spiral nearest the center 32 passes out of the traverse way 46 in the radius arm the opposite end of the spiral engages the next succeeding traverse way nearest the lever l8. This movement is that described in the lifting of the window or the lifting of the lever l8. The reverse is true in the lowering of the window which is accomplished by the op posite rotation of the spiral.

The movement is particularly free and easy. The thrust on the spiral is substantially radial and reversible movement due to weight on the outer end of the lever is impossible. When embodied in a window lifting device the window may be raised or lowered as desired. The mechanism will support the window at any position to which it has been raised or lowered. The device is exceedingly simple and sturdy.

What I claim: 1

1. A window regulator comprising, in combination with a window support and movable window therein, a lever pivoted at one end to said window support and having its opposite end slidably coupled with said window, a disc rotatably secured to said window support and provided with an axially extending circumferential spiral flange, and an arcuate element fixed at one end to said lever and having its free end extending between said disc and said window support and aranged to clear the axis of rotation of the disc, said arcuate element extending in a plane parallel to the plane of the disc and provided along that edge nearest the axis of the disc with a turned over flange, said flange having a series of spaced slots capable of receiving the circumferential spiral flange of the disc as the latter is rotated.

2. A window regulator mechanism comprising, in combination with a window supporting frame and a movable window therein a handle having a shaft supported in said frame, a disc fixed to said shaft and provided with a spiral flange surrounding said shaft and directed toward said handle, a lever coupled at one end to said window and at the other end to said supporting frame and adapted upon pivotal movement about its connection with said frame to raise and lower the window, and an arcuate element secured at one end to said lever at a point intermediate the ends of the lever and arranged to extend between said disc and said handle and closely adjacent to said shaft in its path of movement, said element provided with a turned over marginal lip portion along that edge of the element adjacent said shaft, said lip portion provided with a series of spaced slots engageable with said spiral flange in succeeding order as the disc is rotated by the handle whereby the lever is caused to be pivoted about its connection with the frame to raise and lower the window.

AXEL V. BROGREN. 

